ISO 9001:2015 Quality Manufacturing · ANSI ICWM Performance Tested
98.7% On-Time Ship Rate Across All Orders
200,000+ Orders Fulfilled for OEM & MRO Teams Nationwide
100+ Years of Combined Caster Industry Experience
Automatic Bulk Pricing | OEM & MRO Volume Discounts Applied at Checkout
Up to 350 lbs · Light Duty Applications
Up to 7,200 lbs · Industrial Duty
Up to 17,500 lbs · Heavy Industrial
Up to 40,000 lbs · Extreme Load Applications
Up to 40,000 lbs · Increased Maneuverability
Up to 3,100 lbs · Industrial Shock Absorbing
Up to 3,200 lbs - Corrosion Resistant
Stainless Steel
Up to 8,400 lbs.
Explore All Specialty Caster Applications
From Everyday Use to Niche Solutions
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.
Hamilton's Stainless Steel Spanner Bushings (STL Series) are meticulously designed to enhance the performance of your equipment. Made from high-grade stainless steel, these bushings guarantee strength, corrosion resistance, and longevity. Ideal for environments requiring stringent hygiene, the STL Series is a cornerstone in industries such as food processing, pharmaceuticals, and marine applications.
Whether it's high-speed production lines, heavy load bearing, or precision alignment, Hamilton's STL Series spanner bushings ensure reliable performance under challenging conditions. Their versatility makes them suitable for a wide array of applications, providing unparalleled support and stability.
Available in various sizes and configurations, our spanner bushings can accommodate different shaft sizes and load requirements. For specific dimensions, material compositions, and detailed technical data, refer to our comprehensive product catalog or contact our support team for personalized assistance.
Enhance your machinery's efficiency and reliability with Hamilton's Stainless Steel Spanner Bushings with 1/2" I.D. Discover the difference in durability and performance - order now to take the first step towards operational excellence. For purchasing options and bulk orders, visit our website or reach out directly to our sales team.
These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.
Engineering Tools Hub
All tools + dedicated pages (best for sharing and EEAT). Open hub
Load Calculator (dedicated)
Share this page when discussing load rating per caster. Open load tool
Wheel Diameter Calculator
Publish the dedicated page, then replace this link. Find in hub
Failure Diagnosis Tool
Publish the dedicated page, then replace this link. Find in hub
Designed for engineers, manufacturers, and material handling professionals